How about writing an amusing and quite unique article with your links spread on it. This is another way of getting traffic to your site. Your links here are also considered quality links because its natural and of course you are to submit your article to HP rank article submission sites or bookmarking sites.

Yep... that can also be considered as a quality link. In short, backlinks from high PR page are quality links.

Coming inbound link form high PR site. it's called quality link.

Yes, that's right. however you need to make sure that the link is relevant to your website content.

Agree... but its not necessary that all the inbound links should be from relevant sites. If the site is clean and with good PR its fine.

I think a quality link is relativity site's link.Or a high pr site's.

A link which is relevant to your site and have in top 100 ranking is the good quality of site

I think the high quality links are interfix with your site.And it have a high PR。

Quality site means the site with no broken links, well maintained, not many out bound links.ect.....